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researchers at the University of
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California Berkeley have made a major
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breakthrough in gene editing they've
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managed to increase gene expression in
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food crops boosting photosynthesis which
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helps plants grow better this new method
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is different from past ones that used
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crisper cast 9 to turn jeans off or
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reduce their activity
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Instead This research enhances gene
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activity to improve plant
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growth instead of using genes from other
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organisms this study focused on natural
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plant genes that help with
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photosynthesis inspired by earlier
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research that improved water use
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efficiency by overexpressing a gene
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called psbs the team at Berkeley aimed
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to do the same but without adding
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foreign DNA they chose rice a staple
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food for their EXP experiments using
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crisper /cast 9 they tweaked the DNA
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near the target Gene to control its
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expression and enhance its
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activity the changes in the DNA led to a
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much bigger increase in gene expression
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than expected the surprising results
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show how flexible plants can be over
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millions of years they've adapted to big
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changes in their DNA plant biologists
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can use this natural adaptability to
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make big improvements in in just a few
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years helping plants grow better and
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change the team found that flipping the
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regulatory DNA increased gene expression
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of psvs after making these changes they
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compared the gene activity in modified
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and unmodified rice plants they
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discovered that only a few other genes
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were affected showing their method
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didn't disrupt essential processes
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however the desired changes appear
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appeared in about 1% of the plants they
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modified Patel Tupper explained the
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significance of their work we've shown
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that crisper /cast 9 can make big
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improvements in crop genes quickly and
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efficiently this method might be harder
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than adding new genes but it avoids some
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regulatory issues potentially getting
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these tools to Farmers faster thanks for
2:25
watching if you found this video
2:27
interesting don't forget to like share
